Costilla County, Colorado ZIP Codes
- ZIP records
6 - Cities represented
6 - Sum of listed ZIP population estimates
5,174
Population sum includes positive estimates in these ZIP records; it is not an official county population.
Top ZIP Codes by Population
| Rank | ZIP Code | City | Population estimate |
|---|---|---|---|
| 1 | 81151 | Sanford | 1,716 |
| 2 | 81152 | San Luis | 1,244 |
| 3 | 81133 | Fort Garland | 1,085 |
| 4 | 81123 | Blanca | 606 |
| 5 | 81126 | Chama | 506 |
| 6 | 81138 | Jaroso | 17 |
Cities in Costilla County
ZIP Directory
Browse all ZIP data for Colorado
Methodology: Records are grouped by the source file's listed county and state. Population sums add positive ZIP-level estimates and are not official county totals; city counts use distinct city labels in the source.